net: usb: aqc111: Do not perform PM inside suspend callback

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Summary

CVECVE-2026-23446
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-03 16:16:30 UTC
Updated2026-04-23 20:57:00 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: net: usb: aqc111: Do not perform PM inside suspend callback syzbot reports "task hung in rpm_resume" This is caused by aqc111_suspend calling the PM variant of its write_cmd routine. The simplified call trace looks like this: rpm_suspend() usb_suspend_both() - here udev->dev.power.runtime_status == RPM_SUSPENDING aqc111_suspend() - called for the usb device interface aqc111_write32_cmd() usb_autopm_get_interface() pm_runtime_resume_and_get() rpm_resume() - here we call rpm_resume() on our parent rpm_resume() - Here we wait for a status change that will never happen. At this point we block another task which holds rtnl_lock and locks up the whole networking stack. Fix this by replacing the write_cmd calls with their _nopm variants

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000320000 probability, percentile 0.092520000 (date 2026-04-21)

Problem Types: NVD-CWE-noinfo

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc cc06ac99fd78839b2d38850785731ef131d9ae26 git Not specified
CNA Linux Linux affected e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc b87f361d41f9a7f1f6c426947ca815651c481376 git Not specified
CNA Linux Linux affected e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc 621f2f43741b51f62d767eb4752fbcefe2526926 git Not specified
CNA Linux Linux affected e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc 4de6a43e8ecf961feabddf0e9d6911081d2ed218 git Not specified
CNA Linux Linux affected e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc 3267bcb744ee8a2feabaa7ab69473f086f67fd71 git Not specified
CNA Linux Linux affected e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc d3e32a612c6391ca9b7c183aeec22b4fd24c300c git Not specified
CNA Linux Linux affected e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc 98e8aed64614b0c199d5f0391fbe1a4331cb5773 git Not specified
CNA Linux Linux affected e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc 069c8f5aebe4d5224cf62acc7d4b3486091c658a git Not specified
CNA Linux Linux affected 5.0 Not specified
CNA Linux Linux unaffected 5.0 semver Not specified
CNA Linux Linux unaffected 5.10.253 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.203 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.167 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.130 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.78 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.20 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.10 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/3267bcb744ee8a2feabaa7ab69473f086f67fd71 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/d3e32a612c6391ca9b7c183aeec22b4fd24c300c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/069c8f5aebe4d5224cf62acc7d4b3486091c658a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/4de6a43e8ecf961feabddf0e9d6911081d2ed218 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/cc06ac99fd78839b2d38850785731ef131d9ae26 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/98e8aed64614b0c199d5f0391fbe1a4331cb5773 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/b87f361d41f9a7f1f6c426947ca815651c481376 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/621f2f43741b51f62d767eb4752fbcefe2526926 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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